| Index | Clark | Missouri | National |
| Income per capita | $25,800 | $39,715 | $44,883 |
| Median household income | $60,963 | $72,613 | $81,333 |
| Median income owner occupied | $73,225 | $90,986 | $106,172 |
| Median income renter occupied | $51,782 | $45,210 | $52,080 |
| Median earnings male | $39,435 | $52,324 | $54,343 |
| Median earnings female | $37,529 | $36,971 | $38,439 |
| Unemployment rate | 1.7% | 4.4% | 4.9% |
| Poverty level | 17.9% | 15.3% | 15.1% |

| Labour Type | Male | Female |
| Construction industry | 43.1% | 43.1% |
| Manufacturing sector | 9.2% | 9.2% |
| Financial & insurance services | 7.7% | 7.7% |
| Wholesale & retail services | 21.5% | 21.5% |
| Public administration | 3.1% | 3.1% |
| Transportation, warehousing & utilities | 0.0% | 0.0% |
| Education, health & social services | 1.5% | 1.5% |
| Other | 13.8% | 13.8% |
| City | Population | Household Income | National Avg. |
| Sturgeon, MO | 1,142 | $91,012 | 11.9% |
| Centralia, MO | 4,354 | $84,035 | 3.3% |
| Hallsville, MO | 1,726 | $75,566 | 7.1% |
| Huntsville, MO | 1,864 | $72,124 | 11.3% |
| Harrisburg, MO | 349 | $64,570 | 20.6% |
| Clark, MO | 262 | $60,963 | 25.0% |
| City | Population | Household Income | National Avg. |
| Whittier, AK | 262 | $86,950 | 6.9% |
| Waverly, AL | 262 | $90,908 | 11.8% |
| Caryville, FL | 262 | $0 | 100.0% |
| Cumberland, IA | 262 | $61,810 | 24.0% |
| Hickory, KY | 262 | $0 | 100.0% |
| Clark, MO | 262 | $60,963 | 25.0% |